APA (7th ed.) Citation

Hartung, R. L. (1954). An electronic instrument for direct-reading indication of thermocouple temperature. [publisher not identified].

Chicago Style (17th ed.) Citation

Hartung, Robert Leonard. An Electronic Instrument for Direct-reading Indication of Thermocouple Temperature. [College Station, Tex.]: [publisher not identified], 1954.

MLA (9th ed.) Citation

Hartung, Robert Leonard. An Electronic Instrument for Direct-reading Indication of Thermocouple Temperature. [publisher not identified], 1954.